US Army Corps of Engineers

Libby Dam & Lake Koocanusa

May 2025

Day of MonthTotal Generation MWhAverage Generation MWStation Use MWhInflow kcfsTotal Outflow kcfsGeneration Flow kcfsSpill kcfsMidnight Reservoir ElevationAverage Forebay ElevationAverage Tailwater ElevationAverage Head feetMidnight Storage kaf
1 5367 224 15 14.92 10.50 10.50 0.00 2411.42 2411.31 2120.38 290.93 2994.40
2 5305 221 15 15.18 10.40 10.40 0.00 2411.68 2411.56 2120.35 291.21 3003.90
3 4741 198 14 17.24 8.94 8.94 0.00 2412.13 2411.90 2120.01 291.89 3020.40
4 3524 147 14 22.03 7.02 7.02 0.00 2412.94 2412.54 2119.21 293.33 3050.10
5 3516 146 15 24.33 7.00 7.00 0.00 2413.87 2413.46 2119.20 294.26 3084.50
6 3516 147 15 21.62 7.00 7.00 0.00 2414.65 2414.29 2119.19 295.10 3113.50
7 3518 147 15 20.18 7.00 7.00 0.00 2415.35 2415.00 2119.19 295.81 3139.70
8 3530 147 14 21.00 7.00 7.00 0.00 2416.09 2415.69 2119.22 296.47 3167.40
9 3520 147 14 23.92 7.00 7.00 0.00 2416.98 2416.54 2119.18 297.36 3201.00
10 3508 146 14 23.25 7.00 7.00 0.00 2417.83 2417.44 2119.17 298.27 3233.30
11 3589 150 12 25.84 7.00 7.00 0.00 2418.81 2418.35 2119.22 299.13 3270.60
12 3586 149 14 25.76 7.00 7.00 0.00 2419.78 2419.29 2119.22 300.07 3307.90
13 3602 150 14 25.68 7.00 7.00 0.00 2420.74 2420.31 2119.25 301.06 3344.90
14 24.41 7.00 7.00 0.00 2421.63 2421.20 2119.26 301.94 3379.50
15 23.71 7.00 7.00 0.00 2422.48 2422.09 2119.24 302.85 3412.60
16 23.79 7.00 7.00 0.00 2423.33 2422.93 2119.24 303.69 3446.00
17 21.88 7.00 7.00 0.00 2424.08 2423.74 2119.23 304.51 3475.50
18 20.94 7.00 7.00 0.00 2424.78 2424.47 2119.22 305.25 3503.10
19 21.20 7.00 7.00 0.00 2425.49 2425.17 2119.29 305.88 3531.30
20 19.44 7.00 7.00 0.00 2426.11 2425.82 2119.33 306.49 3556.00
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TOT 50822  184         
AVG 3909 163 14 21.82 7.44 7.44 0.00 2418.51 2418.15 2119.38 298.78 3261.78
MAX 5367   25.84 10.50 10.50 0.00 2426.11 2425.82 2120.38 306.49 3556.00
MIN 3508   14.92 7.00 7.00 0.00 2411.42 2411.31 2119.17 290.93 2994.40
BUILDING STRONG®